US20010026301A1 - Ink jet recording apparatus and ink tank mounted on such ink jet recording apparatus - Google Patents
Ink jet recording apparatus and ink tank mounted on such ink jet recording apparatus Download PDFInfo
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- US20010026301A1 US20010026301A1 US09/814,999 US81499901A US2001026301A1 US 20010026301 A1 US20010026301 A1 US 20010026301A1 US 81499901 A US81499901 A US 81499901A US 2001026301 A1 US2001026301 A1 US 2001026301A1
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- United States
- Prior art keywords
- ink
- jet recording
- ink jet
- recording apparatus
- mounting surface
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Classifications
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B41—PRINTING; LINING MACHINES; TYPEWRITERS; STAMPS
- B41J—TYPEWRITERS; SELECTIVE PRINTING MECHANISMS, i.e. MECHANISMS PRINTING OTHERWISE THAN FROM A FORME; CORRECTION OF TYPOGRAPHICAL ERRORS
- B41J2/00—Typewriters or selective printing mechanisms characterised by the printing or marking process for which they are designed
- B41J2/005—Typewriters or selective printing mechanisms characterised by the printing or marking process for which they are designed characterised by bringing liquid or particles selectively into contact with a printing material
- B41J2/01—Ink jet
- B41J2/17—Ink jet characterised by ink handling
- B41J2/175—Ink supply systems ; Circuit parts therefor
- B41J2/17503—Ink cartridges
- B41J2/17526—Electrical contacts to the cartridge
- B41J2/1753—Details of contacts on the cartridge, e.g. protection of contacts
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B41—PRINTING; LINING MACHINES; TYPEWRITERS; STAMPS
- B41J—TYPEWRITERS; SELECTIVE PRINTING MECHANISMS, i.e. MECHANISMS PRINTING OTHERWISE THAN FROM A FORME; CORRECTION OF TYPOGRAPHICAL ERRORS
- B41J2/00—Typewriters or selective printing mechanisms characterised by the printing or marking process for which they are designed
- B41J2/005—Typewriters or selective printing mechanisms characterised by the printing or marking process for which they are designed characterised by bringing liquid or particles selectively into contact with a printing material
- B41J2/01—Ink jet
- B41J2/17—Ink jet characterised by ink handling
- B41J2/175—Ink supply systems ; Circuit parts therefor
- B41J2/17503—Ink cartridges
- B41J2/1752—Mounting within the printer
Definitions
- the present invention relates to an ink jet recording apparatus arranged to mount an ink tank, and provided with a component of electrical conduction and an ink supply port.
- the invention also relates to such ink tank.
- an ink tank detachably mountable on an ink jet recording apparatus main body it is often provided with an ink supply port on the lower part in the gravitational direction for supplying ink to the main body side. Then, an hollow needle, which is fixed on the ink tank mounting position of the apparatus main body, penetrates a rubber plug provided for the ink supply port of the ink tank when the ink tank is mounted, thus supplying ink to the ink jet recording head installed on the apparatus main body.
- an ink tank itself holds, in some cases, information characteristic of the ink tank, such as the colors and kinds of ink or each amount of contents.
- the connector having contacts provided therefor is made detachably mountable to face the component of electrical conduction arranged on the ink tank side, is installed in order to transmit such information held by the ink tank to the apparatus main body side as electrical information when the ink tank is mounted on the apparatus main body.
- each ink tank is configured to be flat in many cases for the ultimate implementation of a smaller recording apparatus.
- plural numbers of contacts and ink supply ports of the ink tanks are needed on the ink tank mounting surface which is the ink tank installation location on the main body.
- the contacts of each ink tank, which are nearest to the ink supply port are often stained by ink splash or the like from the tip hole of the hollow needle when attaching or detaching the ink tank. Eventually, therefore, the reliability of contacts is made insufficient as electrical contacts.
- both the ink tank mounting surface where the connector is arranged, and the surface of the ink tank mounted on that mounting surface, are substantially flat to each other. Consequently, the ink that has leaked from the tip hole of the hollow needle serving as an ink outlet port tends to flow to the connector side. Assumably, then, this may cause defective contact or short circuit to occur in some cases.
- the present invention is designed. It is an object of the invention to provide an ink jet recording apparatus capable of securing reliability of electrical conduction between the ink tank side and the main body side when an ink tank having a component of electrical conduction and an ink supply therefor is mounted on the ink jet recording apparatus main body, as well as to provide an ink tank to be mounted on such ink jet recording apparatus.
- an ink jet recording apparatus having a component of electrical conduction and an ink supply port for recording by discharging ink supplied from an ink tank to an ink jet recording head, which comprises a mounting surface for mounting ink tank; a connector arranged for the mounting surface, the connector being provided with electric contact electrically conductible with the component of electrical conduction of the ink tank mounted on the mounting surface; an ink outlet port arranged on the mounting surface, the ink outlet port being communicated with the ink outlet port of the ink tank mounted on the mounting surface; and an electric contact supporting unit arranged for the connector for supporting the electric contact, at the same time, lying between the electric contact and the ink outlet port on the mounting surface.
- an ink tank mounted on the ink tank mounting surface of an ink jet recording apparatus for recording by use of an ink jet recording head having an ink outlet port, an electric contact, and a connector provided with an electrical contact supporting member laying between the electric contact and the ink outlet port for supporting the electric contact, and arranging the electric contact to be above the ink outlet port in the gravitational direction, which comprises an ink container for containing ink to be used for recording; an ink supply port for supplying ink in the ink container to the ink jet recording apparatus side by communicating with the ink outlet port when mounted on the mounting surface; and a component of electrical conduction to obtain electrical conduction with the electric contact when mounted on the mounting surface.
- FIG. 1 is a right front perspective view which schematically shows the structure of an ink jet recording apparatus in accordance with one embodiment of the present invention.
- FIG. 2 is a left front perspective view which schematically shows the structure of the ink jet recording apparatus in accordance with one embodiment of the present invention.
- FIG. 3 is a perspective view which shows the tank holder unit shown in FIG. 1 and FIG. 2, and the ink tank which is mounted thereon.
- FIG. 4 is a perspective view which shows the inner structure of the tank holder unit represented in FIG. 3.
- FIG. 5 is a cross-sectional view which shows the inner structure of the tank holder unit represented in FIG. 3, observed from the side end thereof.
- FIG. 6 is a view which shows the front shape of the connector represented in FIG. 4 and FIG. 5.
- FIG. 7 is a view which shows the backside shape of the connector represented in FIG. 4 and FIG. 5.
- the ink jet recording apparatus of the mode shown in FIG. 1 and FIG. 2 is a recording apparatus provided with recording function, which is detachably mountable on a main body printing machine (not shown) for recording continuously designated recording patterns on plural recording positions fixed on two kinds of recording mediums, such as an envelope and a continuous paper sheet capable of being cut arbitrarily.
- FIG. 1 is a right front perspective view
- FIG. 2 is left front perspective view of such apparatus.
- a recording head unit for recording by discharging ink
- a carriage unit for moving the recording head to a recording position and to a standby position as required
- an ink supply unit for supplying ink to the recording head, and a detachably mountable ink tank
- a recovery unit for maintaining the discharge performance of the recording head or for recovering it
- a frame unit for housing each of the aforesaid units
- a power-supply unit for supplying electric power to electrical components or the like on each portion of the recording apparatus.
- the recording head is the one that records by discharging liquid from fine openings by providing energy for liquid in flow paths by means of electrothermal converting devices, piezoelectric devices, or the like.
- a bottom plate 56 is the metallic plate which is bent substantially in the L-letter shape to form the bottom portion and the rear portion, and on the bottom portion, there are arranged parallel abutting portions (not shown) on several locations for keeping a designated distance between each of them on the left and right sides, and also, positioning extrusions 56 A and 56 B on both ends of the bottom portion, as well as threaded portions on plural locations, respectively.
- each of the positioning holes is arranged, into which each of the positioning extrusions 56 A and 56 B is inserted.
- both of them are threaded into the threaded holes on the bottom plate 56 up to the aforesaid abutting portions on the bottom plate 56 .
- the left and right side plates 54 and 55 are incorporated in parallel.
- a front plate 53 is held by means of screws between the left and right side plates 54 and 55 . In this manner, the housing type outer case of the ink jet recording apparatus is formed with the upper side thereof being open.
- a total of three cylindrical bottom stays are caulking, one on the front part and two in the rear part in FIG. 1, and when being penetrated through the extrusions (not shown) of threading portion of the main body printing machine, it becomes possible to fix them by means of screws. Further, on the bottom portion, an elongated hole (not shown) is arranged to make positioning possible with respect to the main body printing machine in cooperation with the front bottom stay 60 A.
- the ink jet recording apparatus is provided with spaces for carrying two kinds of recording mediums.
- an L-letter angled resist plate 57 is fixed by means of screws to be laid across the left and right side plates 54 and 55 .
- the envelope which is a printing medium of the main body printing machine is nipped between the upper face of the envelope carrying belt of the main body printing machine and the lower face of the resist plate, and carried from the left to the right in FIG. 1 along inside the curved portion of the resist plate 57 .
- the passage that connects the recessed portion 54 A on the central part of the left side plate 54 with the square window 55 A of the right side plate 55 shown in FIG. 1 is the space where a gutter is arranged to carry the continuous paper sheet.
- the gutter is arranged at the leading end of the continuous paper sheet carrying unit having storage and carrying system provided for the continuous paper sheet. With the positioning dowel formed on the leading end of the gutter, which is inserted into the positioning hole formed on the right side plate 55 , the ink jet recording apparatus and the continuous paper sheet unit are positioned definitely, and integrated when fixed to the left side plate 54 by means of screw.
- a cutter (not shown) is installed for use of the continuous paper sheet.
- the opening 55 B of the right side plate 55 is a hole through which the cutter unit driving motor is carried.
- the carriage 200 that enables the recording head 400 to travel to the two kinds of carrying spaces described earlier is slidably supported by the CR shaft 202 and CR rail 203 fixed to the right side plate 55 to make reciprocal operation possible by transmitting the driving power of the CR motor 206 to the CR belt 208 fixed to the carriage 200 .
- a tank holder unit 10 is installed to contain a large capacity ink tank 501 as an ink supply system for supplying ink to the recording head 400 that discharges ink.
- tubes 210 are connected for leading out ink from the ink tank 501 to the recording head 400 .
- the recovery unit 300 On the right side in FIG. 1 and FIG. 2, that is, on the downstream side of the recording medium conveyance, and between the two kinds of recording spaces described earlier, the recovery unit 300 is installed to recover defective discharges of the recording head 400 .
- the waste ink that has been used for recovering such defects is expelled to the waste ink pool arranged for the main body printing machine through the lower hole (not shown) of the recovery unit that opens to the bottom plate 56 .
- the control unit is formed by a control board 80 that controls the systems of the ink jet recording apparatus, which is fixed appropriately to the inner rear side of the box-type frame unit described above. Also, The control board 80 is provided with a connector 81 connected with the main body printing machine to receive signals therefrom. Further, a cable 91 is connected with the carriage 200 and the control board 80 to transmit control signals from the control board 80 to the recording head 400 in the carriage 200 .
- a power-supply unit 90 is fixed between the control board 80 and the tank holder unit 10 .
- the power-supply receptacle of the power-supply unit 90 is installed on the square hole 54 B open to the left side plate 54 to receive power supply from the outside, which is connected from the outer side of the frame unit.
- the power-supply unit 90 is wired so as to supply electric power to the control board 80 and a base board (not shown) on the carriage 200 .
- FIG. 3 is a perspective view which shows the tank holder 10 represented in FIG. 1 and FIG. 2, and the ink tank 501 connected thereto.
- the tank holder unit 10 fixes the installed ink tank 501 to supply ink to the recording head on the recording apparatus main body.
- the ink tank 501 is a hollow and airtightly closed container that retains ink injected into the interior thereof.
- an ink supply port (not shown) is formed and sealed with a rubber plug or the like.
- a guide rib 501 A is arranged to guide it when it is inserted into the tank holder unit 10 .
- the tank holder unit 10 is formed with a tank slot 21 serving as the tank insertion inlet; a tank rail 23 provided with the guide rail (not shown) which is located to face the guide rib 501 A of the ink tank 501 and position the tank by nipping the guide rib 501 A for conduction; and a buffer tank 28 serving as the insertion abutting member for the ink tank 501 , which are arranged integrally by use of the box-type tank holder 22 that contains the ink tank 501 . Then, the tank holder unit 10 is fixed to the chassis (not shown) of the apparatus main body by means of the threaded holes 22 A and 22 B.
- FIG. 4 is a view which shows the interior of the tank holder unit 10 by removing the tank rail 23 .
- FIG. 5 is a cross-sectional view which shows the inner structure of the tank holder unit, observed from the side end.
- hollow needles 24 and 25 are arranged to be penetrated through the rubber plugs (not shown) provided for the ink supply port and atmospheric communication port of the ink tank, respectively.
- Each tip of the hollow needles 24 and 25 is pointed to make it easier to penetrate the facing rubber plug.
- an opening is arranged through which ink in the ink tank 501 is supplied to the recording head 400 installed in the recording apparatus main body.
- the foot end of hollow needle 24 is fixed to the buffer tank 28 , and connected with the recording head 400 by way of the flow path 29 formed by the buffer tank 28 and tubes (not shown).
- the foot end of hollow needle 25 is connected with the buffer tank which has a hollow chamber in it. On the upper portion of the hear chamber, there is a small hole (not shown) open for releasing the air.
- the hear needles 24 and 25 are substantially perpendicular to the installation surface thereof (ink tank mounting surface) 28 a .
- the hollow needle 24 serving as the ink outlet port is positioned lower than the hollow needle 25 in the gravitational direction.
- a memory device and a electric base board (not shown) having peripheral circuits therefor are arranged as an information holding unit provided with information characteristic of the ink tank having been written thereon.
- a connector 30 is installed to transmit the ink tank information to the recording apparatus main side by being in contact with the terminals of the aforesaid electric base board.
- the connector 30 is provided with a base unit 30 B which is installed on a mounting portion (not shown) of the buffer tank 28 to be movable in the plane direction. On both ends of the base unit 30 B, the nail portions 30 C are formed, respectively, to regulate the movement of the upper part of the connector 30 when incorporated on the mounting portion on the buffer tank 28 , thus implementing the function to prevent it from falling off.
- a tank insertion unit 30 A is formed on the surface of the base unit 30 B (the surface of tank installation side). The leading end of the tank insertion unit 30 A is tapered.
- the tank insertion unit 30 A On the side face of the tank insertion unit 30 A on the side opposite to the hollow needle 24 serving as the ink outlet port, there are arranged several contacts 31 formed by elastic material (see FIG. 6), and configured to be easily inserted into the tank with the provision of tapered leading ends in the same manner as the tank insertion unit 30 A.
- the contact unit 31 A which serves as electrically conductive portion is allowed to be in contact with the terminals of the aforesaid electric base board on the tank 501 side in an elastically deformed condition.
- a cable insertion unit 30 D is arranged (see FIG. 7).
- the ink tank information is transmitted to a controller (not shown) provided for the recording apparatus main body.
- the ink tank mounting surface 28 a where the connector 30 is installed is positioned higher than the fixing position of the hollow needle 24 serving as the ink outlet port in the gravitational direction. In this way, even if ink should leaks from the hollow needle 24 , ink is not allowed to flow toward the connector 30 .
- the alignment of plural contacts 31 of the connector 30 is directed to intersect with the arrangement direction of the hollow needle 24 and connector 30 or preferably, directed to be orthogonal to it.
- the contacts 31 are supported on the side face which is opposite to the side where the hollow needle 24 is arranged as the ink outlet port.
- the tank insertion unit of the connector 30 which supports the contacts 31 , lies as a wall which blocks ink spreads or the like when ink tank is attached or detached.
- the present invention is structured to arrange the information holding unit that stores the contents characteristic of the ink tank installed on the detachably mountable ink tank holder, and the alignment of plural contacts of the connector which is electrically in contact with it to transmit the information characteristic of the ink tank to the recording apparatus main body so as to enable this alignment is directed to intersect with, or preferably orthogonal to the arrangement direction of the ink outlet port and the connector. Then, with the contact supporting member of the connector that fixes the contacts as reference, the contacts are positioned on the side opposite to the ink outlet port, hence making it possible to secure the reliability of contacts without allowing the contacts to be affected by ink splash or the like when an ink tank is attached to or detached from the apparatus main body.
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- Ink Jet (AREA)
- Particle Formation And Scattering Control In Inkjet Printers (AREA)
- Photographic Developing Apparatuses (AREA)
Abstract
A recording apparatus is arranged to mount on the main body thereof an ink tank provided with a component of electrical conduction and an ink supply port, and structured to make ink supply and electrical connection possible. With the structure thus arranged, the adhesion of ink to the electric contacts is prevented in order to secure the reliability of electrical connection. The contacts are arranged on the side opposite to the hollow needle with a supporting member of a connector that supports plural contacts on the connector as reference.
Description
- 1. Field of the Invention
- The present invention relates to an ink jet recording apparatus arranged to mount an ink tank, and provided with a component of electrical conduction and an ink supply port. The invention also relates to such ink tank.
- 2. Related Background Art
- For an ink tank detachably mountable on an ink jet recording apparatus main body, it is often provided with an ink supply port on the lower part in the gravitational direction for supplying ink to the main body side. Then, an hollow needle, which is fixed on the ink tank mounting position of the apparatus main body, penetrates a rubber plug provided for the ink supply port of the ink tank when the ink tank is mounted, thus supplying ink to the ink jet recording head installed on the apparatus main body.
- Also, for the color printer that uses ink of plural colors or the like, an ink tank itself holds, in some cases, information characteristic of the ink tank, such as the colors and kinds of ink or each amount of contents. Here, on the position where the ink tank is mounted, the connector having contacts provided therefor is made detachably mountable to face the component of electrical conduction arranged on the ink tank side, is installed in order to transmit such information held by the ink tank to the apparatus main body side as electrical information when the ink tank is mounted on the apparatus main body.
- However, for the color printer that requires a plurality of ink tanks, the shape of each ink tank is configured to be flat in many cases for the ultimate implementation of a smaller recording apparatus. As a result, it is usually practiced to arrange in the longitudinal direction of ink tanks the relative positions of the connectors in series on the main body side. Here, for that matter, plural numbers of contacts and ink supply ports of the ink tanks are needed on the ink tank mounting surface which is the ink tank installation location on the main body. In such a case, the contacts of each ink tank, which are nearest to the ink supply port, are often stained by ink splash or the like from the tip hole of the hollow needle when attaching or detaching the ink tank. Eventually, therefore, the reliability of contacts is made insufficient as electrical contacts.
- Also, both the ink tank mounting surface where the connector is arranged, and the surface of the ink tank mounted on that mounting surface, are substantially flat to each other. Consequently, the ink that has leaked from the tip hole of the hollow needle serving as an ink outlet port tends to flow to the connector side. Assumably, then, this may cause defective contact or short circuit to occur in some cases.
- In consideration of the problems of the conventional art discussed above, the present invention is designed. It is an object of the invention to provide an ink jet recording apparatus capable of securing reliability of electrical conduction between the ink tank side and the main body side when an ink tank having a component of electrical conduction and an ink supply therefor is mounted on the ink jet recording apparatus main body, as well as to provide an ink tank to be mounted on such ink jet recording apparatus.
- It is another object of the invention to provide an ink jet recording apparatus in which when an ink tank having a component of electrical conduction and an ink supply port is mounted on the ink jet recording apparatus main body, contacts are arranged on the side opposite to the ink outlet port on the main body side to draw ink from an ink supply port with a supporting member for supporting a plurality of contacts on a connector on the main body side as reference, as well as to provide an ink tank to be mounted on such ink jet recording apparatus.
- It is still another object of the invention to provide an ink jet recording apparatus having a connector arranged above an ink outlet port on the main body side in the gravitational direction for drawing ink from an ink supply port when an ink tank provided with a component of electrical conduction and an ink supply port is mounted on the ink jet recording apparatus main body, as well as to provide an ink tank to be mounted on such ink jet recording apparatus.
- It is a further object of the invention to provide an ink jet recording apparatus capable of preventing defective contact or short circuit from being caused to occur even if ink splashes from the ink supply port or ink outlet port toward the contact or the component of electrical conduction or even if ink leaks from the ink supply port or ink outlet port when an ink tank, which is provided with the component of electrical conduction and ink supply port, is attached to or detached from the main body for mounting or removal by arranging the structure so as to check such ink splash not to adhere or enable such leakage of ink to flow in the direction toward the connector, as well as to provide an ink tank to be mounted on such ink jet recording apparatus.
- It is still a further object of the invention to provide an ink jet recording apparatus having a component of electrical conduction and an ink supply port for recording by discharging ink supplied from an ink tank to an ink jet recording head, which comprises a mounting surface for mounting ink tank; a connector arranged for the mounting surface, the connector being provided with electric contact electrically conductible with the component of electrical conduction of the ink tank mounted on the mounting surface; an ink outlet port arranged on the mounting surface, the ink outlet port being communicated with the ink outlet port of the ink tank mounted on the mounting surface; and an electric contact supporting unit arranged for the connector for supporting the electric contact, at the same time, lying between the electric contact and the ink outlet port on the mounting surface.
- Further, it is another object of the invention to provide an ink tank mounted on the ink tank mounting surface of an ink jet recording apparatus for recording by use of an ink jet recording head, having an ink outlet port, an electric contact, and a connector provided with an electrical contact supporting member laying between the electric contact and the ink outlet port for supporting the electric contact, and arranging the electric contact to be above the ink outlet port in the gravitational direction, which comprises an ink container for containing ink to be used for recording; an ink supply port for supplying ink in the ink container to the ink jet recording apparatus side by communicating with the ink outlet port when mounted on the mounting surface; and a component of electrical conduction to obtain electrical conduction with the electric contact when mounted on the mounting surface.
- FIG. 1 is a right front perspective view which schematically shows the structure of an ink jet recording apparatus in accordance with one embodiment of the present invention.
- FIG. 2 is a left front perspective view which schematically shows the structure of the ink jet recording apparatus in accordance with one embodiment of the present invention.
- FIG. 3 is a perspective view which shows the tank holder unit shown in FIG. 1 and FIG. 2, and the ink tank which is mounted thereon.
- FIG. 4 is a perspective view which shows the inner structure of the tank holder unit represented in FIG. 3.
- FIG. 5 is a cross-sectional view which shows the inner structure of the tank holder unit represented in FIG. 3, observed from the side end thereof.
- FIG. 6 is a view which shows the front shape of the connector represented in FIG. 4 and FIG. 5.
- FIG. 7 is a view which shows the backside shape of the connector represented in FIG. 4 and FIG. 5.
- Hereinafter, with reference to the accompanying drawings, the description will be made of the embodiment in accordance with the present invention.
- At first, the entire structure of an ink jet recording apparatus will be described in accordance with one embodiment of the present invention.
- The ink jet recording apparatus of the mode shown in FIG. 1 and FIG. 2 is a recording apparatus provided with recording function, which is detachably mountable on a main body printing machine (not shown) for recording continuously designated recording patterns on plural recording positions fixed on two kinds of recording mediums, such as an envelope and a continuous paper sheet capable of being cut arbitrarily. Here, FIG. 1 is a right front perspective view, and FIG. 2 is left front perspective view of such apparatus.
- The structure of this recording apparatus is roughly divided into the units given below. In other words, these are: a recording head unit for recording by discharging ink; a carriage unit for moving the recording head to a recording position and to a standby position as required; an ink supply unit for supplying ink to the recording head, and a detachably mountable ink tank; a recovery unit for maintaining the discharge performance of the recording head or for recovering it; a frame unit for housing each of the aforesaid units; and a power-supply unit for supplying electric power to electrical components or the like on each portion of the recording apparatus. In this respect, the recording head is the one that records by discharging liquid from fine openings by providing energy for liquid in flow paths by means of electrothermal converting devices, piezoelectric devices, or the like.
- Of the aforesaid units, the frame unit will be described at first.
- Referring to FIG. 1 and FIG. 2, a
bottom plate 56 is the metallic plate which is bent substantially in the L-letter shape to form the bottom portion and the rear portion, and on the bottom portion, there are arranged parallel abutting portions (not shown) on several locations for keeping a designated distance between each of them on the left and right sides, and also, positioningextrusions left plate 54 and theright plate 55, each of the positioning holes is arranged, into which each of thepositioning extrusions bottom plate 56 up to the aforesaid abutting portions on thebottom plate 56. Thus, with thebottom plate 56 as a central stay, the left andright side plates rear portion 56C which rises in a substantially L-letter form, afront plate 53 is held by means of screws between the left andright side plates - On the bottom end of the
bottom plate 56, a total of three cylindrical bottom stays are caulking, one on the front part and two in the rear part in FIG. 1, and when being penetrated through the extrusions (not shown) of threading portion of the main body printing machine, it becomes possible to fix them by means of screws. Further, on the bottom portion, an elongated hole (not shown) is arranged to make positioning possible with respect to the main body printing machine in cooperation with the front bottom stay 60A. - Also, the ink jet recording apparatus is provided with spaces for carrying two kinds of recording mediums.
- One of them is a carrying space as given below. Above the
front plate 53, an L-letterangled resist plate 57 is fixed by means of screws to be laid across the left andright side plates resist plate 57. - The other one of them is a carrying space as given below. As shown in FIG. 2, the passage that connects the
recessed portion 54A on the central part of theleft side plate 54 with thesquare window 55A of theright side plate 55 shown in FIG. 1 is the space where a gutter is arranged to carry the continuous paper sheet. Although not shown, the gutter is arranged at the leading end of the continuous paper sheet carrying unit having storage and carrying system provided for the continuous paper sheet. With the positioning dowel formed on the leading end of the gutter, which is inserted into the positioning hole formed on theright side plate 55, the ink jet recording apparatus and the continuous paper sheet unit are positioned definitely, and integrated when fixed to theleft side plate 54 by means of screw. - On the outer side of the
right side plate 55 on the extended line of the leading end of the gutter, a cutter (not shown) is installed for use of the continuous paper sheet. The opening 55B of theright side plate 55 is a hole through which the cutter unit driving motor is carried. - Now, the carriage unit will be described.
- The
carriage 200 that enables therecording head 400 to travel to the two kinds of carrying spaces described earlier is slidably supported by theCR shaft 202 andCR rail 203 fixed to theright side plate 55 to make reciprocal operation possible by transmitting the driving power of theCR motor 206 to theCR belt 208 fixed to thecarriage 200. - Next, the ink supply unit will be described.
- On the left side in FIG. 1 and FIG. 2, that is, on the upstream side of the recording medium conveyance, a
tank holder unit 10 is installed to contain a largecapacity ink tank 501 as an ink supply system for supplying ink to therecording head 400 that discharges ink. To thetank holder unit 10,tubes 210 are connected for leading out ink from theink tank 501 to therecording head 400. - Next, the recovery unit will be described.
- On the right side in FIG. 1 and FIG. 2, that is, on the downstream side of the recording medium conveyance, and between the two kinds of recording spaces described earlier, the
recovery unit 300 is installed to recover defective discharges of therecording head 400. The waste ink that has been used for recovering such defects is expelled to the waste ink pool arranged for the main body printing machine through the lower hole (not shown) of the recovery unit that opens to thebottom plate 56. - Next, the control unit will be described.
- The control unit is formed by a
control board 80 that controls the systems of the ink jet recording apparatus, which is fixed appropriately to the inner rear side of the box-type frame unit described above. Also, Thecontrol board 80 is provided with aconnector 81 connected with the main body printing machine to receive signals therefrom. Further, acable 91 is connected with thecarriage 200 and thecontrol board 80 to transmit control signals from thecontrol board 80 to therecording head 400 in thecarriage 200. - Between the
control board 80 and thetank holder unit 10, a power-supply unit 90 is fixed. The power-supply receptacle of the power-supply unit 90 is installed on thesquare hole 54B open to theleft side plate 54 to receive power supply from the outside, which is connected from the outer side of the frame unit. The power-supply unit 90 is wired so as to supply electric power to thecontrol board 80 and a base board (not shown) on thecarriage 200. - Now, in conjunction with FIG. 3 to FIG. 7, the description will be made of the
tank holder unit 10 further in detail. - FIG. 3 is a perspective view which shows the
tank holder 10 represented in FIG. 1 and FIG. 2, and theink tank 501 connected thereto. - The
tank holder unit 10 fixes the installedink tank 501 to supply ink to the recording head on the recording apparatus main body. Theink tank 501 is a hollow and airtightly closed container that retains ink injected into the interior thereof. On the lower part of theink tank 501 in the gravitational direction, an ink supply port (not shown) is formed and sealed with a rubber plug or the like. On the side face of theink tank 501, aguide rib 501A is arranged to guide it when it is inserted into thetank holder unit 10. - The
tank holder unit 10 is formed with atank slot 21 serving as the tank insertion inlet; atank rail 23 provided with the guide rail (not shown) which is located to face theguide rib 501A of theink tank 501 and position the tank by nipping theguide rib 501A for conduction; and abuffer tank 28 serving as the insertion abutting member for theink tank 501, which are arranged integrally by use of the box-type tank holder 22 that contains theink tank 501. Then, thetank holder unit 10 is fixed to the chassis (not shown) of the apparatus main body by means of the threadedholes - FIG. 4 is a view which shows the interior of the
tank holder unit 10 by removing thetank rail 23. FIG. 5 is a cross-sectional view which shows the inner structure of the tank holder unit, observed from the side end. - On the portions to face the ink supply port (not shown) and the atmospheric communication port (not shown) of the
ink tank 501, respectively, inside thetank holder unit 10,hollow needles hollow needles ink tank 501 is supplied to therecording head 400 installed in the recording apparatus main body. The foot end ofhollow needle 24 is fixed to thebuffer tank 28, and connected with therecording head 400 by way of theflow path 29 formed by thebuffer tank 28 and tubes (not shown). Also, the foot end ofhollow needle 25 is connected with the buffer tank which has a hollow chamber in it. On the upper portion of the hear chamber, there is a small hole (not shown) open for releasing the air. With the structure thus arranged, ink injected into theink tank 501 is supplied to therecording head 400 through thehollow needle 24, in parallel with which the air outside is supplied into theink tank 501 through thehollow needle 25 to be replaced with ink. In this manner, ink in the tank is consumed sufficiently. - As shown in FIG. 5, the hear needles24 and 25 are substantially perpendicular to the installation surface thereof (ink tank mounting surface) 28 a. The inserting direction of the tank into the
tank holder unit 10, and the connecting direction of thehollow needles hollow needle 24 serving as the ink outlet port is positioned lower than thehollow needle 25 in the gravitational direction. - At a position on the side face of the
ink tank 501, which is side by side with the ink supply port almost in series, a memory device and a electric base board (not shown) having peripheral circuits therefor are arranged as an information holding unit provided with information characteristic of the ink tank having been written thereon. On the bottom face in thetank holder unit 10, aconnector 30 is installed to transmit the ink tank information to the recording apparatus main side by being in contact with the terminals of the aforesaid electric base board. - Further, in conjunction with FIG. 6 and FIG. 7, the description will be made of the configuration of the
connector 30 which is used for the present invention. - The
connector 30 is provided with abase unit 30B which is installed on a mounting portion (not shown) of thebuffer tank 28 to be movable in the plane direction. On both ends of thebase unit 30B, thenail portions 30C are formed, respectively, to regulate the movement of the upper part of theconnector 30 when incorporated on the mounting portion on thebuffer tank 28, thus implementing the function to prevent it from falling off. On the surface of thebase unit 30B (the surface of tank installation side), atank insertion unit 30A is formed. The leading end of thetank insertion unit 30A is tapered. - On the side face of the
tank insertion unit 30A on the side opposite to thehollow needle 24 serving as the ink outlet port, there are arrangedseveral contacts 31 formed by elastic material (see FIG. 6), and configured to be easily inserted into the tank with the provision of tapered leading ends in the same manner as thetank insertion unit 30A. Thecontact unit 31A which serves as electrically conductive portion is allowed to be in contact with the terminals of the aforesaid electric base board on thetank 501 side in an elastically deformed condition. - On the backside of the
base unit 30B (the face on the side opposite to the tank installation side), acable insertion unit 30D is arranged (see FIG. 7). By use of thefat cable 32 which is inserted into it, the ink tank information is transmitted to a controller (not shown) provided for the recording apparatus main body. - Particularly, as shown in FIG. 5, the ink
tank mounting surface 28 a where theconnector 30 is installed is positioned higher than the fixing position of thehollow needle 24 serving as the ink outlet port in the gravitational direction. In this way, even if ink should leaks from thehollow needle 24, ink is not allowed to flow toward theconnector 30. Then, the alignment ofplural contacts 31 of theconnector 30 is directed to intersect with the arrangement direction of thehollow needle 24 andconnector 30 or preferably, directed to be orthogonal to it. Also, thecontacts 31 are supported on the side face which is opposite to the side where thehollow needle 24 is arranged as the ink outlet port. In other words, between theplural contacts 31 and the hollow needle 34 serving as the ink outlet port, the tank insertion unit of theconnector 30, which supports thecontacts 31, lies as a wall which blocks ink spreads or the like when ink tank is attached or detached. - As described above, in accordance with the present invention, it is structured to arrange the information holding unit that stores the contents characteristic of the ink tank installed on the detachably mountable ink tank holder, and the alignment of plural contacts of the connector which is electrically in contact with it to transmit the information characteristic of the ink tank to the recording apparatus main body so as to enable this alignment is directed to intersect with, or preferably orthogonal to the arrangement direction of the ink outlet port and the connector. Then, with the contact supporting member of the connector that fixes the contacts as reference, the contacts are positioned on the side opposite to the ink outlet port, hence making it possible to secure the reliability of contacts without allowing the contacts to be affected by ink splash or the like when an ink tank is attached to or detached from the apparatus main body.
- Also, with the connector positioned higher than the ink outlet port in the gravitational direction, it becomes possible to implement the formation of structure which prevents defective contacts or short circuits from being caused by ink flow toward the connector even if ink leakage should occur from the ink outlet port.
Claims (17)
1. An ink jet recording apparatus provided with a component of electrical conduction and an ink supply port for recording by discharging ink supplied from an ink tank to an ink jet recording head, comprising:
a mounting surface for mounting ink tank;
a connector arranged for said mounting surface, said connector being provided with electric contact electrically conductible with the component of electrical conduction of said ink tank mounted on said mounting surface;
an ink outlet port arranged on said mounting surface, said ink outlet port being communicated with said ink outlet port of said ink tank mounted on said mounting surface; and
an electric contact supporting unit arranged for said connector for supporting said electric contact, at the same time, lying between said electric contact and said ink outlet port on said mounting surface.
2. An ink jet recording apparatus according to , wherein said electric contact is arranged in plural numbers in the direction intersecting with a line connecting said electric contact and said ink outlet port.
claim 1
3. An ink jet recording apparatus according to or , wherein said connector is arranged on said mounting surface to be above said ink outlet port in the gravitational direction.
claim 1
claim 2
4. An ink jet recording apparatus according to , wherein said mounting surface is inclined to the horizontal plane.
claim 3
5. An ink jet recording apparatus according to or , wherein said ink jet recording head discharges ink supplied from ink tank using thermal energy generated by electrothermal converting elements.
claim 1
claim 2
6. An ink jet recording apparatus according to or , wherein said ink jet recording head discharges ink supplied from ink tank using energy generated by piezoelectric elements.
claim 1
claim 2
7. An ink jet recording apparatus provided with a component of electrical conduction and an ink supply port for recording by discharging ink supplied from an ink tank to an ink jet recording head, comprising:
a mounting surface for mounting ink tank;
an ink outlet port arranged on said mounting surface, said ink outlet port being communicated with said ink outlet port of said ink tank mounted on said mounting surface; and
a connector arranged to be above said ink outlet port in the gravitational direction, said connector being provided with electric contact electrically conductible with the component of electrical conduction of said ink tank mounted on said mounting surface.
8. An ink jet recording apparatus according to , wherein said mounting surface is inclined to the horizontal plane.
claim 7
9. An ink jet recording apparatus according to or , wherein said ink jet recording head discharges ink supplied from ink tank using thermal energy generated by electrothermal converting elements.
claim 6
claim 7
10. An ink jet recording apparatus according to or , wherein said ink jet recording head discharges ink supplied from ink tank using energy generated by piezoelectric elements.
claim 7
claim 8
11. An ink jet recording apparatus provided with a component of electrical conduction and an ink supply port for recording by discharging ink supplied from an ink tank to an ink jet recording head, comprising:
a mounting surface for mounting ink tank;
a connector arranged for said mounting surface, said connector being provided with electric contact electrically conductible with the component of electrical conduction of said ink tank mounted on said mounting surface;
an ink outlet port arranged on said mounting surface, said ink outlet port being communicated with said ink outlet port of said ink tank mounted on said mounting surface; and
an electric contact supporting unit arranged for said connector for supporting said electric contact in plural numbers in the direction orthogonal to the line connecting said electric contact and said ink outlet port, at the same time, lying between said electric contact and said ink outlet port on said mounting surface.
12. An ink jet recording apparatus according to , wherein said ink jet recording head discharges ink supplied from ink tank using thermal energy generated by electrothermal converting elements.
claim 11
13. An ink jet recording apparatus according to , wherein said ink jet recording head discharges ink supplied from ink tank using energy generated by piezoelectric elements.
claim 11
14. An ink tank mounted on the ink tank mounting surface of an ink jet recording apparatus for recording by use of an ink jet recording head, having an ink outlet port, an electric contact, and a connector provided with an electrical contact supporting member laying between said electric contact and said ink outlet port for supporting said electric contact, and said electric contact being arranged to be above said ink outlet port in the gravitational direction, comprising:
an ink container for containing ink to be used for recording;
an ink supply port for supplying ink in said ink container to the ink jet recording apparatus side by communicating with said ink outlet port when mounted on said mounting surface; and
a component of electrical conduction to obtain electrical conduction with said electric contact when mounted on said mounting surface.
15. An ink jet recording apparatus according to , wherein said component of electrical conduction is used for attaining the electrical transmission of information between an information holding unit for holding information characteristic of said ink tank regarding records kept for said ink tank, and said ink jet recording apparatus.
claim 5
16. An ink jet recording apparatus according to or , wherein said ink jet recording head discharges ink supplied from ink tank using thermal energy generated by electrothermal converting elements.
claim 14
claim 15
17. An ink jet recording apparatus according to or , wherein said ink jet recording head discharges ink supplied from ink tank using energy generated by piezoelectric elements.
claim 14
claim 15
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP2000-097621 | 2000-03-31 | ||
JP2000097621 | 2000-03-31 |
Publications (2)
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US20010026301A1 true US20010026301A1 (en) | 2001-10-04 |
US6742872B2 US6742872B2 (en) | 2004-06-01 |
Family
ID=18612216
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
US09/814,999 Expired - Lifetime US6742872B2 (en) | 2000-03-31 | 2001-03-23 | Ink jet recording apparatus and ink tank mounted on such ink jet recording apparatus |
Country Status (6)
Country | Link |
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US (1) | US6742872B2 (en) |
EP (1) | EP1138502B1 (en) |
AT (1) | ATE287796T1 (en) |
AU (1) | AU781545B2 (en) |
CA (1) | CA2342287C (en) |
DE (1) | DE60108544T2 (en) |
Cited By (7)
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EP1484182A1 (en) | 2003-06-06 | 2004-12-08 | Canon Kabushiki Kaisha | Ink container and ink container holder |
EP1495871A1 (en) | 2003-07-07 | 2005-01-12 | Canon Kabushiki Kaisha | Ink container and ink container holder |
US20060232645A1 (en) * | 2005-03-30 | 2006-10-19 | Toshio Kumagai | Liquid ejecting apparatus |
US8286878B2 (en) | 2004-12-16 | 2012-10-16 | Cognex Technology And Investment Corporation | Hand held symbology reader illumination diffuser |
US9292724B1 (en) | 2004-12-16 | 2016-03-22 | Cognex Corporation | Hand held symbology reader illumination diffuser with aimer optics |
US9405951B2 (en) | 2005-10-24 | 2016-08-02 | Cognex Technology And Investment Llc | Integrated illumination assembly for symbology reader |
US9536124B1 (en) | 2003-10-24 | 2017-01-03 | Cognex Corporation | Integrated illumination assembly for symbology reader |
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MXPA03002490A (en) | 2002-03-20 | 2004-10-15 | Seiko Epson Corp | Ink cartridge and ink cartridge holder. |
JP3666491B2 (en) | 2002-03-29 | 2005-06-29 | セイコーエプソン株式会社 | Ink cartridge and recording apparatus |
US7452062B2 (en) * | 2003-07-18 | 2008-11-18 | Seiko Epson Corporation | Liquid container with structure for controlling leaked liquid |
US7758172B2 (en) * | 2003-07-18 | 2010-07-20 | Seiko Epson Corporation | Injection apparatus and a valve device provided in a passage |
JP2005053212A (en) * | 2003-07-18 | 2005-03-03 | Seiko Epson Corp | Liquid container |
AR049674A1 (en) * | 2003-08-08 | 2006-08-30 | Seiko Epson Corp | LIQUID CONTAINER CONTAINER TO SUPPLY A LIQUID SUCH CONSUMPTION APPLIANCE |
JP4058434B2 (en) * | 2003-12-26 | 2008-03-12 | キヤノン株式会社 | Ink storage container, method for manufacturing the same, and printer system |
JP4298629B2 (en) * | 2003-12-26 | 2009-07-22 | キヤノン株式会社 | Inkjet recording device |
JP4058436B2 (en) | 2003-12-26 | 2008-03-12 | キヤノン株式会社 | Ink storage container |
MXPA04012681A (en) * | 2003-12-26 | 2005-07-01 | Canon Kk | Liquid container and liquid supplying system. |
JP4047328B2 (en) * | 2004-12-24 | 2008-02-13 | キヤノン株式会社 | Liquid storage container, liquid supply system and recording apparatus using the container, and circuit board for the container |
JP4468192B2 (en) * | 2005-01-27 | 2010-05-26 | キヤノン株式会社 | Inkjet recording device |
ES2364291T3 (en) * | 2006-11-06 | 2011-08-30 | Seiko Epson Corporation | LIQUID DEPOSIT, DEPOSIT SUPPORT AND LIQUID CONSUMPTION DEVICE. |
JP4946751B2 (en) * | 2006-11-06 | 2012-06-06 | セイコーエプソン株式会社 | Container holder, liquid consumption apparatus, and liquid container |
EP2298557B1 (en) * | 2006-11-06 | 2014-03-19 | Seiko Epson Corporation | Liquid container |
TW201114613A (en) * | 2009-10-29 | 2011-05-01 | Fieldct Inc | Ink cartridge compatible with jet painting machine |
DE112010005580A5 (en) * | 2010-05-20 | 2013-03-21 | Pelikan Hardcopy Production Ag | Printing material container and contact device |
US9108423B2 (en) | 2011-05-31 | 2015-08-18 | Funai Electric Co., Ltd. | Consumable supply item with fluid sensing for micro-fluid applications |
US9132656B2 (en) | 2011-05-31 | 2015-09-15 | Funai Electric Co., Ltd. | Consumable supply item with fluid sensing and pump enable for micro-fluid applications |
JP5615392B2 (en) | 2012-02-23 | 2014-10-29 | キヤノン株式会社 | Liquid storage container and apparatus capable of mounting the same |
USD722642S1 (en) * | 2013-12-13 | 2015-02-17 | Keyence Corporation | Ink bottle for inkjet printer |
USD995625S1 (en) | 2020-07-28 | 2023-08-15 | Keyence Corporation | Cartridge for continuous inkjet printer |
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- 2001-03-28 CA CA002342287A patent/CA2342287C/en not_active Expired - Lifetime
- 2001-03-28 AU AU31379/01A patent/AU781545B2/en not_active Expired
- 2001-03-29 EP EP01108049A patent/EP1138502B1/en not_active Expired - Lifetime
- 2001-03-29 AT AT01108049T patent/ATE287796T1/en not_active IP Right Cessation
- 2001-03-29 DE DE60108544T patent/DE60108544T2/en not_active Expired - Lifetime
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Cited By (10)
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EP1484182A1 (en) | 2003-06-06 | 2004-12-08 | Canon Kabushiki Kaisha | Ink container and ink container holder |
US20050007420A1 (en) * | 2003-06-06 | 2005-01-13 | Canon Kabushiki Kaisha | Ink container and ink container holder |
EP1495871A1 (en) | 2003-07-07 | 2005-01-12 | Canon Kabushiki Kaisha | Ink container and ink container holder |
US20050036016A1 (en) * | 2003-07-07 | 2005-02-17 | Canon Kabushiki Kaisha | Ink container and ink container holder |
US7125109B2 (en) | 2003-07-07 | 2006-10-24 | Canon Kabushiki Kaisha | Ink container and ink container holder |
US9536124B1 (en) | 2003-10-24 | 2017-01-03 | Cognex Corporation | Integrated illumination assembly for symbology reader |
US8286878B2 (en) | 2004-12-16 | 2012-10-16 | Cognex Technology And Investment Corporation | Hand held symbology reader illumination diffuser |
US9292724B1 (en) | 2004-12-16 | 2016-03-22 | Cognex Corporation | Hand held symbology reader illumination diffuser with aimer optics |
US20060232645A1 (en) * | 2005-03-30 | 2006-10-19 | Toshio Kumagai | Liquid ejecting apparatus |
US9405951B2 (en) | 2005-10-24 | 2016-08-02 | Cognex Technology And Investment Llc | Integrated illumination assembly for symbology reader |
Also Published As
Publication number | Publication date |
---|---|
US6742872B2 (en) | 2004-06-01 |
CA2342287C (en) | 2006-11-28 |
EP1138502A3 (en) | 2002-04-10 |
ATE287796T1 (en) | 2005-02-15 |
EP1138502A2 (en) | 2001-10-04 |
DE60108544T2 (en) | 2006-01-12 |
CA2342287A1 (en) | 2001-09-30 |
AU3137901A (en) | 2001-10-04 |
AU781545B2 (en) | 2005-05-26 |
EP1138502B1 (en) | 2005-01-26 |
DE60108544D1 (en) | 2005-03-03 |
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